Subtract 20/42 from 10/5
1st number: 2 0/5, 2nd number: 20/42
10/5 - 20/42 is 32/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 42 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 5 × 42 = 210,
10/5 = 10 × 42/5 × 42 = 420/210 - Likewise, for the 2nd fraction, since 42 × 5 = 210,
20/42 = 20 × 5/42 × 5 = 100/210 - Subtract the two like fractions:
420/210 - 100/210 = 420 - 100/210 = 320/210 - After reducing the fraction, the answer is 32/21
- In mixed form: 111/21
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